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Progress with UnISIS: A Rayleigh laser guided adaptive optics system
Thompson, Laird A.; Teare, Scott W.; Xiong YH(熊耀恒); Chakraborty, Abhijit; Gruendl, Robert
会议录名称Proceedings of SPIE - The International Society for Optical Engineering
2004-10
卷号5490
页码90-96
产权排序第3完成单位
收录类别EI
会议名称Advancements in Adaptive Optics
会议日期2004-06-21
会议地点Glasgow, United kingdom
摘要The UnISIS adaptive optics system is now completed and ready for science observations. We describe the experience we have gained in building and using the system, and we give a preview of one new science goal: the use of Gaussian aperture pupil masks for high-contrast imaging of companion objects near bright stars. A key aspect of the UnISIS design is the simultaneous use of two wavefront sensors, one for natural stars and the other for the laser guide star. We demonstrate the performance of this calibration system with results from on-the-bench tests. We describe several practical aspects of observing at Mt. Wilson including our ability to predict the nights of best seeing with weather data available on-line. We also show how the laser guide star return signal is enhanced by observing at large zenith angles and compare this to Rayleigh scattering models.
语种英语
学科领域天文学
出版者SPIE
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISSN号0277-786X
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7329
专题应用天文研究组
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GB/T 7714
Thompson, Laird A.,Teare, Scott W.,Xiong YH,et al. Progress with UnISIS: A Rayleigh laser guided adaptive optics system[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE,2004:90-96.
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